Chevrolet 2009 Colorado Automobile User Manual


 
Theft-Deterrent Feature
Non-RDS Radios
THEFTLOCK
®
is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identification Number
(VIN). If the radio is moved to a different vehicle, it does
not operate and LOC displays.
With THEFTLOCK
®
activated, the radio does not
operate if stolen.
RDS Radios
THEFTLOCK
®
is designed to discourage theft of your
vehicle’s radio. The feature works automatically by
learning a portion of the Vehicle Identification Number
(VIN). If the radio is moved to a different vehicle, it does
not operate and LOCKED displays.
When the radio and vehicle are turned off, the blinking
red light indicates that THEFTLOCK
®
is armed.
With THEFTLOCK
®
activated, the radio does not
operate if stolen.
Radio Reception
Frequency interference and static can occur during
normal radio reception if items such as cell phone
chargers, vehicle convenience accessories, and external
electronic devices are plugged into the accessory
power outlet. If there is interference or static, unplug the
item from the accessory power outlet.
AM
The range for most AM stations is greater than for FM,
especially at night. The longer range can cause station
frequencies to interfere with each other. For better radio
reception, most AM radio stations boost the power levels
during the day, and then reduce these levels during the
night. Static can also occur when things like storms and
power lines interfere with radio reception. When this
happens, try reducing the treble on the radio.
FM Stereo
FM signals only reach about 10 to 40 miles
(16 to 65 km). Although the radio has a built-in electronic
circuit that automatically works to reduce interference,
some static can occur, especially around tall buildings or
hills, causing the sound to fade in and out.
3-61